Cell Generation Time

Bacteria are amazingly complex, even though each is comprised of only a single cell. Bacteria make up about 95 percent of all the...

Influent Wastewater Characteristics

This post will provide data/tables to give you a starting point when it comes to evaluating influent wastewater characteristics in the...

Introduction Hydrogen peroxide can be used to increase the dissolved oxygen (DO) concentration in an aerobic bioreactor, often referred...

I get asked every now and then about books I think are best for learning more about wastewater treatment. There are many, many excellent...

Sep 26, 20212 min read

This post is starting off very, very small. I'll add to it periodically. What I really have in mind here is an easy place I can go to...

Nov 22, 20202 min read

The Unit of "8.34 pounds per gallon" Explained In the United States a common unit of measurement for water is that it weighs 8.34 pounds...

Sep 29, 20198 min read

GSA, MCRT, SRT, and Sludge Age Defined I think there is confusion, sometimes, in how operators (which includes me) define the terms mean...

Jan 15, 20194 min read

The Math You Need, When You Need It Temperature Conversion To convert from degrees F to degrees C or vice versa you can use the following...

Dec 19, 20166 min read

Introduction Before going into a detailed discussion of the F:M (food-to-mass or food-to-microorganism) ratio I want to let you know...